Checking in changes prior to tagging of version v0.4.0.

Changelog diff is:

diff --git a/Changes b/Changes
index 5c97b75..ba95acd 100644
--- a/Changes
+++ b/Changes
@@ -2,6 +2,11 @@ Revision history for Perl extension Spellunker

 {{$NEXT}}

+v0.4.0 2013-11-03T09:54:46Z
+
+    - Added clear_stopwords method.
+      (moznion)
+
 v0.3.1 2013-09-10T20:02:10Z

     - Fixed too much recursive calls.